Calender with roll magazine



Aug. 11, 1931. J. KLEINEWEFERS OALENDER WITH ROHL MAGAZINE Filed July 5, 1930 2 sums-sheet 1 Aug. 11, 1931.

J. KLEINEWEFERS CALENDER WITH ROLL MAGAZINE Filed July 5, 1950 2 Sheets-Sheet 2 Patented Aug. 11, 1931 UNITED STATES GALENDEB WITH 3on1. MAGAZ NE Application filed July 3, 1930, Serial No. 465,623, and in Germany May 16, 1929.

This invention relates to calenders of any type, particularly to those for refining textile fabrics, in which a repeated exchanging of the rolls is necessary. For this purpose 5 so called revolver or magazine calenders are known, that is calenders with a-plurality of steel rolls, which can be brought into use consecutively in any desired order of rotation. In the revolver calenders proper w the steel rolls are mounted in rotatable discs and can be brought into operative position relative to the resilient rolls by suitably turning the discs. Magazine calenders are used as substitutes for revolver calenders, in

15 which the spare steel rolls are arranged in a magazine situated above the calender frames, and the changing of the rolls is effected by suitable lifting tackles, This construction also possesses the advantages of 20 the revolver calender in the case of single and double acting calenders. The magazine of these calenders consists of two revolver heads out out in star-shape, which are mounted in circular frames open on one side 55 above the calender frames, and in the cut out portions of which the journals of the spare rolls rest. The revolver principle indispensable with the revolver calenders proper is open to many objections with mag- 30 azine calenders. As during the turning, of

the magazine,the journals of the rolls situated underneath slide on the magazine frames and, owing to the heavy weight of the rolls, cause such considerable friction, that a comparatively great force is necessary to effect this turning. Besides which the revolver arrangement is very expensive as for the turning a special driving mechanism is necessary. 4 According to the invention the same object is attained in a much simpler and cheaper manner, in that a plurality of pairs of bearings open at the top are arranged on the calendar frames, in which bearings the spare rolls rest, the rails of the travelling crabs serving for inserting the rolls being displaced so far towards the outside, that the roll grippers can be attached out side the roll journals, and the rolls can be 5*; moved freely through between the rail supports for the travellingcrabs mounted like brackets onthe frames. It is naturally immaterial whether the bearings for the spare rolls are all arranged in the same plane ori whether for example they are arranged in stages. I V l The known magazine calendars are also open to a further disadvantage. The magazine is arranged above the rolls in such a manner that the roll to be inserted must be brought directly out of the magazine into its working position, so that the roll being exchanged must first be placed on the floor, which is naturall accompanied by a con siderable waste 0 time. Consequently according to a further feature of theinvention auxiliary bearings are arranged be tweenthe bearings of the'spare rolls and the working bearings, said auxiliary bearings serving as preparing position for the: roll to be inserted so'that the roll to be removed can be placed from its Working bearings directly into the magazine bearings. An embodiment'of the invention isillusv trated by way of example in the accompany in drawings in which: ig. 1 shows'the magazine side elevation. Fig. 2 is a part front elevation of 1. A double sided multiple roll calender with a plurality of independentpairs of rolls, adapted to be placed under pressure, is chos enby way of example. In each of the side framesa two pairs of rolls are arranged. The paper rolls are'designated by b and the engraved steel rolls by c. Projections d are cast on: both sides of both side frames a,in each of which a hydraulic pressure cylinder (1 is arranged. The pistons fof these cylinders act on verticallyslidable bearingsg of the paper rolls b. The projectionsd forni further the upper halves of the bearings of the embossing rolls c. The feeding is of fected from the rolls 7:. and the winding at This arrangement enables any desired number of pairs of rolls to be arranged superposed, which can all be driven and placed under pressure independentlythe one of the other. This results in a considerable saving calender in of space and, owing to the omission of the I T NTOF I E 'illlifting tackles usually employed, represents a very simple construction.

A plurality of pairs of bearings is open at the top and a pair of auxiliary bearings Z are arranged on both sides of the side frames a of the calender. The spare rolls 0 and 0 rest in the bearings 70, whereas the auxiliary bearings l serve as preparatory position for the roll to be inserted. Bracket-like supports on are further mounted on the side frames at of the calender, and the upper edges n of these supports form the rails for the wheels 0 of two travelling crabs. The chain 9 and chain wheel q serve for raising and lowering the roll grippers r, the longitudinal displacement of which being effected by means of the chain 8 and the chain wheel 6, by means of toothed wheels 4) meshing on both sides in racks u.

If it is desired to exchange one of the rolls 0, one of the spare rolls 0, o is first brought out of the magazine bearings 71 into the aux iliary bearings Z by means of the roll grippers 1", which may be connected to the extensions of the roll journals, projecting beyond the bearings or to the journals of the transmission wheels. In order to save as much time as possible, this is preferably effected whilst the roll 0 to be exchanged is still revolving. When the roll 0 has terminated its work, it is placed by means of the same lifting tackle into the bearings k of the magazine which have become free, whereupon the spare roll resting in the bearings Z is brought into working position.

The bracket-like construction of the rail supports m enables the rolls 0, 0 0 to pass freely between same. These brackets on are fitted on the frames a, when an existing calender has to be converted into a magazine calender, as in the example illustrated; in the case of new calender-s however the brackets m are suitably cast in one piece together with the side frames at.

I claim:

1. A calender with roll magazine, comprising in combination with the magazine spare rolls in said magazine and the side frames of the calender, a plurality of pairs of bearings open at the top arranged the one behind the other on said side frames adapted to receive said spare rolls, travelling crabs for exchanging the rolls, bracket like rail supports projecting laterally from said side frames, rails for said travelling crabs formed by the upper edges of said supports projecting outwardly beyond said frames, and rollgrippers on said travelling crabs adapted to engage the journals of the rolls and to transport said roll freely between said rail supports.

2. A calender as specified in claim 1, comprising in combination with the bearings of the spare rolls and the working bearings, auxiliary bearings arranged between said J OHANNES KLEINEW'EFERS. 

